Binder



NOV. 10, 1931. RABlNOF I 1,830,961

BINDER Filed D60. 7, 1929 I 'IIIIIIIIIIIIIIIII 11111111111111 'Illlllllllllllll IIIIIIIIIII IIII IN V EN TOR. air-14AM.

BY & 0Q-. @M

ATTORNEYS.

Patented Nov. 10, 1931 res ABRAHAM M. RABINOF, F BROOKLYN, NEW YORK BINDER Application filed December The present invention relates to loose leaf 1 binders.

Common loose leaf binders are objectionable on the score that the pages are readily torn out and lost. To eliminate the indicated objection various remedies such as the provision of a plurality of fastening rin s'or of stiff spring clamps and the like have been resorted to. The first remedy is rather cost- 1 ly and the second inconvenient to use and not satisfactory because the sheets tend to become disarranged.

One object of the present invention is the provision of a loose leaf binder which is easy to manipulate and which combines the features of safe retention of the sheets together with an orderlyarrangement thereof.

A further object is to provide a loose leaf binder which may be expansible to accommodate varying quantities of loose leaf sheets.

Another object is to provide a binder wherein there is a minimum of wear on operating parts.

Still another object is to provide a binder 25 which may be manufactured at low cost.

WVith the above and other objects in view, my invention consists in the novel construction, combination and arrangement of elements, to be hereinafter more fully described,

39 shown and claimed.

In the accompanying drawings which forms part of this specification and in which similar reference characters denote corresponding parts:

Fig. 1 is a perspective view of my complete binder;

Fig. 2 is a sectional detail along line 2-2 of Fig. 1 seen in the direction of the arrows;

Fig. 3 is a sectional detail along line 33 m of Fig. 2 also seen in the direction of the 'ar rows; and

Fig. 4 is a top plan View of one of the fas toning elements of my binder.

n Referring to the drawings my loose leaf binder may comprise a cover of cardboard,

fibre board, leather or other suitable material. Intermediate the ends of said cover and spaced from each other are two tongues 11 r and 12 respectively. The said tongues may be formed integrally with said cover 10 by "7, 1929. Serial No. 412,348.

folding the latter upon itself as shown. The

portion 13 of the cover between said 'two tongues is expansible and to achieve this end may be corrugated as shown or otherwise arranged to accomplish this result.

Attached to tongue 11 are two or more mounting posts 14. Each of the said posts may be attached to the said tongue by providing the former with a reduced end 14 adapted to pass through a hole 11 in the folds of said tongue. Suitable washers. 15 may be mounted on said end 14 one on each side of said tongue and the lower end of said reduced portion beaded over as at 16 to firmly hold said post in place. At the same time the folds of said tongue are securely held together.

The interior of each of said posts is drilled out longitudinally almost the entire length thereof and provided with an internal thread and adapted to screw into each of said posts from the top is a bolt 17 which in its lowermost position entirely fills said bore. Near the top end of said bolt is an annular groove 17 'of comparatively large depth and the head end 17 of the bolt above said groove is smaller in diameter than'the main body of the bolt. lVhen the bolt 17 is screwed into the post 14 to its full extent the lower edge of groove 17 lies -even with the top edge of said post. i

The upper tongue 12 is provided with holes 12 adapted to be in alignment with the positions of the posts'14 and the said holes have a diameter equal to or slightly larger than the diameter of said posts. Mounted on said tongue over the said holes 12 are plates 18 bent in Ushape, the lower legs 18' thereof lying on the lower side of said tongue and the upper legs 18 lying on the top side of said tongue. The lower leg 18 has a hole 20 and the upper leg 18 has aliole 19 slightly greater in diameter than the'head end 17 2 of the bolt 17 and smaller than the diameter of the body portion of the latter. When'the tongue 12 is mounted on said posts 14 only the heads 17 2 and the annular groves 17 will project through the top legs 18 of the plates 18. The said plates are suitably attached to said tongue as by eyelets 21 or the like which at the same time clamp the folds of the tongue 12 securely together.

Pivotally mounted on the top face of each leg 18 is ahook-like member 22, the hollow portion 22 of which may swing over the hole 19. The said hook is adapted to engage in the annular groove 17 underneath the head 17 2 of the bolt 17 and when so engaged therein will prevent the removal of the tongue 12 from post 14 or bolt 17. A projecting tab 22 or other suitable means is provided for said member 22 to afford convenient manipula-. tion of the said member. Each hook always operates on its respective plate 18 and hence wear on the cover from these fastening devices is eliminated.

The method of use is as follows With the tongue 12 removed from the posts 14 a plurality of sheets of paper P having holes therein corresponding to the number of posts are mounted on said posts. A quantity sufficient to completely fill the posts may be used. Then the tongue 12- is mounted on said posts and pressed down until the heads 17 of the bolts project through the tops of plates 18 and a portion of the annular grooves 17 also project-above the top of said plates. Then hooks 22 are rotated to catch in said grooves and retain said tongue in place.

If it is desired to accommodate more sheets, the bolts 17 may be unscrewed to provide practically one hundred per cent increase in capacity. The corrugated portion '13 on the cover takes care of the necessary increase in distance between tongues 11 and 12.

It is obvious that my invention may be modified without departing from the spirit thereof and I do not wish-to be limited to the details shown and described. I

What I claim is 1. Abinder comprising a folding cover,

spaced tongues on said cover, posts attached on one of said tongues for mounting loose leafsheets, bolts on said posts for increasing the sheet capacity thereof, each of said bolts formed with an annular groove near the top end thereof, spaced perforated plates mounted on said other tongue through which the free ends of said bolts may passand means on said plates for engagement in said annular grooves. 2. A binder comprising'a folding cover, spaced tongues on said cover, posts attached on one of said tongues, bolts on said posts for increasing the sheet capacity thereof, each of said bolts formed with annular groove and reduced head, spaced perfor. ted plates mounted on said other tongue through which the free ends of said bolts may pass and hook-like means ivotally mounted on said plates and adaptec to engage in said annular grooves.

3.1K binder comprising a folding cover,

variably spaced tongues on said cover, posts on one of said tongues, bolts on said posts for increasing the sheet capacity thereof, each of said bolts formed with an annular groove and a reduced head, spaced perforated plates mounted on the other tongue and bent in U-shape, one leg of each thereof adapted to be on the top surface of said last-named tongue and the other leg of each adapted to be 011 the bottom surface thereof, the perforations in said upper leg eing smaller than that in said lower leg, and means mounted on the outer faces of said first-named legs for engaging said annular grooves project-- ing through said upper leg perforations.

l. A binder comprising a folding cover,

spaced ton ues on said cover, posts attached on one of said tongues, bolts on said'posts for increasing the sheet capacity thereof, each of said bolts formed with an annular groove and reduced head, spaced perforated plat-es mounted on the other tongue through which the free ends of said bolts may pass an d flat hook-like members swivelly mount- .21 said plates. andadapted to engage in aid annular grooves.

In testimony whereof I affix my signature.

ABRAHAM M. RABINOF. 

